BR112013014419A2 - a method and apparatus for controlling the ac output of a power converter connected to an ac power network subjected to a voltage failure; and machine readable storage medium - Google Patents
a method and apparatus for controlling the ac output of a power converter connected to an ac power network subjected to a voltage failure; and machine readable storage mediumInfo
- Publication number
- BR112013014419A2 BR112013014419A2 BR112013014419A BR112013014419A BR112013014419A2 BR 112013014419 A2 BR112013014419 A2 BR 112013014419A2 BR 112013014419 A BR112013014419 A BR 112013014419A BR 112013014419 A BR112013014419 A BR 112013014419A BR 112013014419 A2 BR112013014419 A2 BR 112013014419A2
- Authority
- BR
- Brazil
- Prior art keywords
- power
- failure
- output
- power converter
- phase
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
- H02P9/105—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for increasing the stability
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/107—Purpose of the control system to cope with emergencies
- F05B2270/1071—Purpose of the control system to cope with emergencies in particular sudden load loss
- F05B2270/10711—Purpose of the control system to cope with emergencies in particular sudden load loss applying a low voltage ride through method
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Inverter Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Ac-Ac Conversion (AREA)
Abstract
método e aparelho para controlar a saída de ca de um conversor de potência conectado a uma rede de potência de ca submetida a uma falha de tensão; e meio de armazenamento legível por máquina trata-se de um sistema (324) de controle de conversor de potência que tem um rastreador de fase (404) que é projetado e configurado para estimar a fase da tensão na rede de potência (208) que estará na rede quando esta se recuperar de uma falha. tal sistema (324) de controle de conversor de potência permite que uma fonte de potência conectada à rede de potência realize afundamento de um evento de falha e continue a fornecer potência à mesma na fase e frequência projetadas. em uma modalidade, o rastreador de fase (404) fornece essa estimativa ao ter um tempo de resposta lento o suficiente de modo que a queda de tensão ou queda causada pela falha não afete substancialmente o sistema de controle. em outra modalidade, o detector de fase é projetado e configurado para congelar a frequência de sua saída sob detecção de um evento de falha na rede de potência.a method and apparatus for controlling the ac output of a power converter connected to an ac power network subjected to a voltage failure; and machine readable storage medium is a power converter control system (324) having a phase tracker (404) that is designed and configured to estimate the voltage phase in the power network (208) that will be on the network when it recovers from a failure. Such power converter control system (324) allows a power source connected to the power grid to sink a fault event and continue to provide power to it at the projected phase and frequency. In one embodiment, the phase tracker 404 provides this estimate by having a slow enough response time such that the voltage drop or failure caused by the failure does not substantially affect the control system. In another embodiment, the phase detector is designed and configured to freeze the frequency of its output upon detection of a power grid failure event.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42245110P | 2010-12-13 | 2010-12-13 | |
US61/422,451 | 2010-12-13 | ||
US201061425510P | 2010-12-21 | 2010-12-21 | |
US61/425,510 | 2010-12-21 | ||
US13/275,362 US20120147637A1 (en) | 2010-12-13 | 2011-10-18 | Methods, Systems, and Software for Controlling a Power Converter During Low (Zero)-Voltage Ride-Through Conditions |
US13/275,362 | 2011-10-18 | ||
PCT/US2011/063252 WO2012082430A2 (en) | 2010-12-13 | 2011-12-05 | Methods, systems, and software for controlling a power converter during low (zero)-voltage ride-through conditions |
Publications (2)
Publication Number | Publication Date |
---|---|
BR112013014419A2 true BR112013014419A2 (en) | 2016-09-13 |
BR112013014419B1 BR112013014419B1 (en) | 2020-10-27 |
Family
ID=46199242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112013014419-0A BR112013014419B1 (en) | 2010-12-13 | 2011-12-05 | method and apparatus for controlling the ac output of a power converter connected to an ac power network subjected to a voltage failure; machine-readable storage medium; and method for controlling the ac output of a power converter connected to an ac power network having a frequency and subjected to a voltage failure |
Country Status (6)
Country | Link |
---|---|
US (3) | US20120147637A1 (en) |
EP (1) | EP2652858B1 (en) |
CN (1) | CN103314498B (en) |
BR (1) | BR112013014419B1 (en) |
CA (1) | CA2818939C (en) |
WO (1) | WO2012082430A2 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3918837B2 (en) * | 2004-08-06 | 2007-05-23 | 株式会社日立製作所 | Wind power generator |
US20120147637A1 (en) * | 2010-12-13 | 2012-06-14 | Northern Power Systems, Inc. | Methods, Systems, and Software for Controlling a Power Converter During Low (Zero)-Voltage Ride-Through Conditions |
KR101260611B1 (en) * | 2011-07-20 | 2013-05-03 | 엘에스산전 주식회사 | Apparatus and method for controlling high voltage inverter |
WO2013104233A1 (en) * | 2012-01-10 | 2013-07-18 | Qiu Yongan | Wind-directly-driven oil pumping machine |
US20130270823A1 (en) * | 2012-04-17 | 2013-10-17 | Clipper Windpower, Llc | Method for Enhancing Low Voltage Ride Through Capability on a Wind Turbine |
GB2503262B (en) | 2012-06-20 | 2020-04-01 | Nidec Control Techniques Ltd | System and method for managing recovery of control in an electrical system |
US9312699B2 (en) | 2012-10-11 | 2016-04-12 | Flexgen Power Systems, Inc. | Island grid power supply apparatus and methods using energy storage for transient stabilization |
US10289080B2 (en) | 2012-10-11 | 2019-05-14 | Flexgen Power Systems, Inc. | Multi-generator applications using variable speed and solid state generators for efficiency and frequency stabilization |
US9244506B2 (en) * | 2012-11-16 | 2016-01-26 | Siemens Aktiengesellschaft | Method of controlling a power plant |
US9553517B2 (en) | 2013-03-01 | 2017-01-24 | Fllexgen Power Systems, Inc. | Hybrid energy storage system and methods |
US9593672B2 (en) * | 2013-08-07 | 2017-03-14 | Siemens Aktiengesellschaft | Isochronous wind turbine generator capable of stand-alone operation |
CN103501015B (en) * | 2013-09-03 | 2015-09-30 | 国家电网公司 | A kind of energy storage system control method stabilizing photovoltaic fluctuation |
US10544780B2 (en) * | 2013-10-21 | 2020-01-28 | Vestas Wind Systems A/S | Method for controlling a wind power plant and a wind power plant |
CN103683333A (en) * | 2013-12-31 | 2014-03-26 | 一重集团大连设计研究院有限公司 | Control system and control method of converter in low voltage ride-through |
CN103825300B (en) * | 2014-03-12 | 2015-09-30 | 浙江埃菲生能源科技有限公司 | A kind of line voltage phase-lock technique passed through for photovoltaic combining inverter no-voltage |
US9157415B1 (en) | 2014-03-21 | 2015-10-13 | General Electric Company | System and method of controlling an electronic component of a wind turbine using contingency communications |
CN103972904A (en) * | 2014-04-28 | 2014-08-06 | 上海电力学院 | Symmetrical drop-off low voltage ride through reactive power control method of photovoltaic power generation system |
TWI522767B (en) * | 2014-06-17 | 2016-02-21 | 國立中央大學 | Photovoltaic power generation system |
CN104158394A (en) * | 2014-07-08 | 2014-11-19 | 安徽金峰新能源股份有限公司 | Auto-starting control method for photovoltaic inverter |
US10574055B2 (en) | 2014-12-30 | 2020-02-25 | Flexgen Power Systems, Inc. | Transient power stabilization device with active and reactive power control |
CN106654330B (en) * | 2015-11-03 | 2019-03-12 | 大连融科储能技术发展有限公司 | Flow battery exchanges side input-output characteristic evaluation method and its system |
US10024305B2 (en) * | 2015-11-10 | 2018-07-17 | General Electric Company | System and method for stabilizing a wind farm during one or more contingency events |
CN109962491B (en) * | 2017-12-22 | 2021-10-15 | 北京金风科创风电设备有限公司 | Fault processing method and fault processing device for converter of wind generating set |
EP3579370A1 (en) * | 2018-06-05 | 2019-12-11 | Nordex Energy GmbH | Method for operating a wind turbine |
CN110334935B (en) * | 2019-06-27 | 2021-11-19 | 南方电网科学研究院有限责任公司 | Method and device for evaluating transient stability of grid-connected converter and storage medium |
CN111245029B (en) * | 2020-01-15 | 2021-05-11 | 同济大学 | Cooperative processing method for micro power source fault control and micro power grid protection |
US11698053B2 (en) * | 2020-12-02 | 2023-07-11 | General Electric Renovables Espana, S.L. | System and method for controlling a wind turbine |
CN113489025B (en) * | 2021-07-15 | 2023-03-07 | 西安热工研究院有限公司 | Control method for assisting AGC frequency modulation super-capacitor device of thermal power generating unit |
CN113746140B (en) * | 2021-11-08 | 2022-02-11 | 四川大学 | Doubly-fed wind turbine fault ride-through method under continuous disturbance of high-voltage direct-current transmission |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239251A (en) | 1989-06-30 | 1993-08-24 | The State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Oregon State University | Brushless doubly-fed motor control system |
US6784565B2 (en) | 1997-09-08 | 2004-08-31 | Capstone Turbine Corporation | Turbogenerator with electrical brake |
JP4034458B2 (en) * | 1999-01-20 | 2008-01-16 | 中部電力株式会社 | Self-excited AC / DC converter control device and circuit breaker circuit control device |
US6600973B1 (en) * | 1999-11-24 | 2003-07-29 | American Supercondutor Corporation | Method and apparatus for providing power to a utility network |
US6285533B1 (en) | 1999-12-13 | 2001-09-04 | Kabushiki Kaisha Toshiba | Method of and apparatus for controlling the operation of variable speed gearing |
US6362988B1 (en) * | 2000-06-29 | 2002-03-26 | Ford Global Tech., Inc. | System and method for synchronizing the phase angle for an AC power source in parallel operation with a grid |
DE10119624A1 (en) | 2001-04-20 | 2002-11-21 | Aloys Wobben | Operating wind energy plant involves regulating power delivered from generator to electrical load, especially of electrical network, depending on current delivered to the load |
EP2267859A3 (en) | 2001-07-23 | 2014-08-13 | Northern Power Systems Utility Scale, Inc. | Control system for a power converter and method of controlling operation of a power converter |
US6531926B1 (en) | 2001-09-13 | 2003-03-11 | Overture Networks, Inc. | Dynamic control of phase-locked loop |
DK174755B1 (en) | 2002-01-14 | 2003-10-20 | Vestas Wind Sys As | System for connecting a wind turbine generator to the electrical supply network |
US6919650B2 (en) * | 2002-05-31 | 2005-07-19 | Ballard Power Systems Corporation | Hybrid synchronization phase angle generation method |
DE10232423A1 (en) | 2002-07-17 | 2004-01-29 | Ge Wind Energy Gmbh | Method for operating a wind energy installation and wind energy installation for executing such a method |
US6921985B2 (en) | 2003-01-24 | 2005-07-26 | General Electric Company | Low voltage ride through for wind turbine generators |
CA2515436C (en) | 2003-02-07 | 2012-04-10 | Vestas Wind Systems A/S | Method for controlling a power-grid connected wind turbine generator during grid faults and apparatus for implementing said method |
US7233129B2 (en) * | 2003-05-07 | 2007-06-19 | Clipper Windpower Technology, Inc. | Generator with utility fault ride-through capability |
JP4160618B2 (en) | 2003-09-23 | 2008-10-01 | アロイス・ヴォベン | How wind turbines operate in the event of a grid failure |
WO2006069569A1 (en) | 2004-12-28 | 2006-07-06 | Vestas Wind Systems A/S | Method of controlling a wind turbine connected to an electric utility grid |
US7492617B2 (en) | 2005-06-29 | 2009-02-17 | Northern Power Systems, Inc. | Frequency control and power balancing in disturbed power inverter system and method thereof |
US7253537B2 (en) | 2005-12-08 | 2007-08-07 | General Electric Company | System and method of operating double fed induction generators |
US7456695B2 (en) * | 2006-01-10 | 2008-11-25 | General Electric Company | Apparatus, method and computer program product for tracking information in an electric grid |
US7607896B2 (en) | 2006-04-28 | 2009-10-27 | Baker Hughes Incorporated | Systems and methods for power ride-through in variable speed drives |
US7629705B2 (en) | 2006-10-20 | 2009-12-08 | General Electric Company | Method and apparatus for operating electrical machines |
DE102006050077A1 (en) * | 2006-10-24 | 2008-05-08 | Repower Systems Ag | Inverter with controllable phase angle |
WO2008055499A2 (en) * | 2006-11-06 | 2008-05-15 | Gamesa Innovation & Technology, S.L. | Advanced real-time grid monitoring system and method |
GB2444528B (en) * | 2006-12-09 | 2011-07-06 | Converteam Ltd | Methods for synchronising a plurality of generators |
US20100308584A1 (en) * | 2007-02-26 | 2010-12-09 | Newcastle Innovation Limited | Integrated wind turbine controller and inverter |
DE102007049251A1 (en) * | 2007-10-12 | 2009-04-23 | Repower Systems Ag | Wind turbines with regulation for network faults and operating methods therefor |
DE102009031017B4 (en) * | 2009-06-29 | 2018-06-21 | Wobben Properties Gmbh | Method and device for monitoring a three-phase alternating voltage network and wind energy plant |
US8014181B2 (en) * | 2009-09-29 | 2011-09-06 | General Electric Company | Power conversion control system |
CN201570870U (en) * | 2009-11-18 | 2010-09-01 | 华锐风电科技(集团)股份有限公司 | LVRT (low voltage ride-through) control apparatus and wind-power generation equipment |
US20120147637A1 (en) * | 2010-12-13 | 2012-06-14 | Northern Power Systems, Inc. | Methods, Systems, and Software for Controlling a Power Converter During Low (Zero)-Voltage Ride-Through Conditions |
-
2011
- 2011-10-18 US US13/275,362 patent/US20120147637A1/en not_active Abandoned
- 2011-12-05 CA CA2818939A patent/CA2818939C/en active Active
- 2011-12-05 BR BR112013014419-0A patent/BR112013014419B1/en active IP Right Grant
- 2011-12-05 WO PCT/US2011/063252 patent/WO2012082430A2/en active Application Filing
- 2011-12-05 CN CN201180058940.0A patent/CN103314498B/en not_active Expired - Fee Related
- 2011-12-05 EP EP11799223.0A patent/EP2652858B1/en active Active
-
2012
- 2012-05-10 US US13/468,524 patent/US8467205B2/en active Active
-
2013
- 2013-05-29 US US13/904,458 patent/US8792259B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20130286696A1 (en) | 2013-10-31 |
CA2818939A1 (en) | 2012-06-21 |
CA2818939C (en) | 2019-01-08 |
WO2012082430A2 (en) | 2012-06-21 |
US20120218791A1 (en) | 2012-08-30 |
US8792259B2 (en) | 2014-07-29 |
WO2012082430A3 (en) | 2012-09-07 |
CN103314498B (en) | 2015-11-25 |
US8467205B2 (en) | 2013-06-18 |
BR112013014419B1 (en) | 2020-10-27 |
US20120147637A1 (en) | 2012-06-14 |
EP2652858A2 (en) | 2013-10-23 |
CN103314498A (en) | 2013-09-18 |
EP2652858B1 (en) | 2017-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR112013014419A2 (en) | a method and apparatus for controlling the ac output of a power converter connected to an ac power network subjected to a voltage failure; and machine readable storage medium | |
BR102014005475A8 (en) | motor drive system and method for operating a motor drive system | |
BR112018068092A2 (en) | Intelligent security monitoring and analytical system for personal protective equipment | |
BR112013008949A8 (en) | APPARATUS AND METHOD FOR FAULT DETECTION AND LOCATION DETERMINATION | |
WO2012100263A3 (en) | Abnormality detection architecture and methods for photovoltaic systems | |
BRPI0900722A2 (en) | method, apparatus and system for detecting a failure in a power system | |
BR112017003961A2 (en) | aerosol supply system, method of operating an aerosol supply system | |
BR112014003437A2 (en) | adaptive light detection for arc minority systems | |
BR112013017587A2 (en) | arc leakage mitigation for photovoltaic systems | |
BR102014003222A8 (en) | method and system for controlling a wind turbine and method for identifying a surface condition of a wind turbine rotor blade | |
BR112017024345A2 (en) | distance protection scheme | |
BR112015030254A2 (en) | apparatus for controlling a lighting module and lighting module | |
BR112012020991A2 (en) | system or method for determining a bearing state | |
BR112018000557A2 (en) | quick warning method for converter valve failures and quick warning system for converter valve failures | |
BR112019003567A2 (en) | temperature abnormality detection method for power conversion device and temperature abnormality detection device for power conversion device | |
BR112017024167A2 (en) | Method and device for determining an operating state of an elevator installation | |
BR112018016088A2 (en) | method for controlling the service life of an energy storage module, control system, computer readable storage media, energy storage module and system, and, vehicle | |
BR112012031315A2 (en) | systems and methods for intelligent and flexible management and monitoring of computer systems | |
BR112015016399A2 (en) | method for detecting a fault for a protective device, protective device and protective device system | |
BR112017002661A2 (en) | wireless industrial process monitor, wireless monitoring system, and method in a wireless field device in an industrial process control system. | |
BR112013027334A2 (en) | Method and apparatus for characterizing coupling integrity of process control equipment | |
BR112015028725A2 (en) | protection element conversion machine obstruction detection method and system | |
BR112015004853A2 (en) | method that operates on a failed circuit indicator for use with a power monitoring network, and, failed circuit indicator for use with a power monitoring network | |
BR112015010398A2 (en) | information processing apparatus, information processing method, and program | |
BR112015020467A2 (en) | DRILLING HOLE SEQUENCE PLANNING METHOD AND EQUIPMENT, DRILLING RIG AND ITS CONTROL SYSTEM AND OPERATION METHOD |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25A | Requested transfer of rights approved |
Owner name: NORTHERN POWER SYSTEMS, INC. (US) |
|
B25A | Requested transfer of rights approved |
Owner name: WEG ELECTRIC CORP (US) |
|
B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
B06U | Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/12/2011, OBSERVADAS AS CONDICOES LEGAIS. |